Tire remover



Jun'24, 1924. A f 1,498,816.

j* ,l. A. SMI'II'H TIRE REMQVER Filed Ot. 29 4.920

@LIRE l 11W NTO la mi @Patented June 24, l924s J' OHN A. SMITH AND EDWARD H. S'TVINES, 0F NEW BRUNSVIICK, NEW JERSEY.

TIRE REMOVER.

Application iled October 29, 1920. Serial No. 420,518.

To all whom t may concern.'

Be it known that we, JOHN A. SMITH and EDWARD H. STINEs, citizens of the United States, residing in New Brunswick, in the county of Middlesex and State of New Jersey, have invented a new and useful; Improvement in Tire Removers, of which the following is a specification.

Our invention relates to an, improvement in tire-removers; particularly an appliance for removing rubber tires from the rims of wheels upon automobiles and trucks.

An object of the invention is to provide a device by which arubber .tirecan easily be pried loose and quickly separated from the .metal of the rim by which itpis .mounted upon a wheel, with a little labor and without risk of tearing the tire or otherwise inflicting damage upon either the tire, or the rim holdingit. Y v

,A further object of this invention is to provide an appliance which is simple in construction, and inexpensive to manufacture, which can readily be made to assume operative position with respect to a rim having a tire thereon and which requires the work of a moment only to be manipulated to give the desired result.

Other objects and advantages of the in-l vention will appear from the followingv specification taken 'with the accompanying drawings, 'which disclose the best forms of our invention now known to us.l This disclosure, however, is explanatory only; 7and we may change what is actually shown herein; especially as to details of shape, size and arrangement of the parts; without departing from the nature and spirit of the invention, as indicated by the broadv and general meanings of the terms in which the appended claims are expressed.

On the drawings .'f V

Figure l is a View of a wheel for a'truck or other vehicle having a rubber tire thereon;

Figure 2 according toour invention, in force the tire off the rim;` V

is a side view, of a tire-remover, position to Figure 3 isl an inside view of. a jaw of said tire remover; y f I Y Y Figure 4 1s a similarview of another Jaw thereof;

Figure 5 isa front view of a thrust block in same; and

Figure 6 is a view similar to Figure 2 showing our invention in position to remove a tire from a different type/.of rim.

The same numerals identify the same parts throughout. v In Figure l we. show at l the hub of the wheel of an automobile or truck; this wheel comprising spokes 2, which unite the hub to the felloe 3. Encircling this yfelloe is a rim comprising rings4 and 5 bywhich the tire 6 is held on the wheelA when the tire and the wheel are in service. `Figure l shows 'the ring 4 upon the wheelwith the tire encircling the same but with the ring 5 slightly separated. merely to indicate the manner in which the tire is separated from the rim; .and not the manner in which the rim and tire aremounted upon the wheel; because whenA the tire is This mode of villustration is to be applied to the wheel the rim is assembled by making the two rings engage the opposite sides of the tire and secured together, and then the tire and the rim are placed on the wheel as a single unit. When the tire is to be. taken off the wheel, the rim and the tire are removed together, but when the tire is to be separated from the rim, the tire and the ring 4 often adhere to each other. In other words, the ring. 5 will come away easily enough; not requiring the' use of tools of any sort. This? condition is indicated by the space between the rings 4 and 5 in Figure 1. To complete the removal of the tire from the rim, the tire must be loosed and forced away from this ring 4.

The ring 4 and ring'5 are of the endless type; that Vis they are not cut through or I provided anywhere in their circumference with vabutting extremities; and the tire is first applied to one of these rings, such as the ring 4, which engages the tire on one side; the other ring 5 being applied to the tire on the opposite side, so that the 'inner ends of these two ringsare in contact with each other. The tire and the ringcan then be mounted upon the wheel, and bolts or any kind of fastening devices can be employed to hold the rim and felloe'together These fastening devices are not shown, .but they are of well known construction and they the rim and the tire can bedismounted vtrom the wheel easily enough, but if the tire requires repairs, A'the separation of .the tire from the rim is not always easy, particu.- larly after a long period or use in different kinds of weather. Under such conditions the tire isy very apt to stick, -the rubber of the tire uniting with the metal of the rim so as to become almost integra-l therewith., and much labor and ei'ort involving the use of heavy tools may be required to force the tire and the rim apart. As stated, lthe -ring 5 will come away comparatively easily, as indicated in Figure 1; also in vbroken lines in Figure 2; but the tire is very apt to stick tight to the ring 4e. Our tire-remover is shaped rto kengage the ring 4 by gripping its opposite edges, and to engage the tire (S so as to separate it from this ring.

'The remover is indicated as a whole lby the numeral 7. It comprises a jaw 8 terminating at one end in a tooth 9 and another .jaw 10, so shaped on its inner tace that it lwill lit the outer face of the ring 1l and hold it snugly. The outer face 11', of the ring 4 will be somewhat irregular but generally comprises a projection such as an annular ribI 12 and the jaw 10 will have a transverse groove or recess 18 to receive'this rib 12. Each of the jaws lhave projections 14 threaded to engage elements or tie bolts l5, and when the two jaws are applied 'to the opposite edges of the ring 4L and the bolts tightened the jaws grip the ring securely .between them.

The jaw 10 has an extension 1G beyond the groove 13, beginning at the part where the groove is placed and this extension has an opening to receive a. member or bolt 17. This bolt is adapted to cooperate with a member or block 18 which is intended -to abut the side of the tire and force it away from the ring 4 when the bolt 17 engages the block. The bolt is provided with a head 19 to enter a recess 20.

In practice the jaws can be attached to the ring 4 after the tireV and rim are ytaken ofi' the wheel; and the ring 5 has been removed. The block 18 is disposed between the side of the tire and the bolt 17 and the latter turned up. The pressure thus supplied loosens the tire and forces it away from the ring li. The operation can be performed at as many points around the'circumference of the tire as may be required. In this way the tire is separated vfrom the rim over its whole extent and can be removed with very little labor and in very short time.

This tire-remover is yadapted for endless rims as above stated and not :tor split rims. It is seen to be quite simple in construction and capable of being applied and operated in a ymanner to give `a desired result.

The jaws may be strengthened and reinforced :by `webs or Aribs 21.

Figure 6 shows ho-w your tire remover can be employed to remove tires from rims consisting ol" a main vring t, having an annular groove 22.011 one side, for -a locking ring, indicated at vE23 and the tire remover comprises -a jaw -8 las before, having a tooth 9 to .engage the side of the ring .4 containing the groove 22; l:and another jaw 10; and the outer face of the ring .4ta has Van annular rib 12; and the jaw 10 contains a transverse groove or recess to receive this rib. The jaws 8 and 10 also have projections let for tie bolts 15; and on the jaw 10 is an .extension 16 carrying Lthe bolt 17 to torce the block against the tire. In utilizing our tire remover for this type of rim, the jaws are made to grip the opposite sides ofthe ring 4ta; with tooth `9 on the jaw 8 engaging one side and the jaw 10 engaging the opposite side so that .the bolt 17 vcan apply the necessary degree o force to make the tire and the rim comeapart.

Having described our invention, what we believe tobe new and desire to secure and protect Aby Letters Patent of the United States, is

1. A tire remover comprising a pair of jaws, one of which has a tooth thereon and the other a recess, projectionsfon said jaws, elements to Aengage the projections and secure said jaws together to make them grip the opposite edges of la ring constituting the main part of a rim to hold the tire upon a wheel, said ring having a projection to enter the recess, a thrust member carried by the jaw having said recess, and a Vblock to be operated by said member to force the ad-v the'opposi'te edges of a ring constituting the main partei1 a rim to hold the tire upon a wheel, said ring having a projection to enter the recess, .-and a thrust member carried vby the jaw having said recess to force the adjacent side of the tire out of engagement with the side of the rim and thus loosen 'the tire and enable it to be dismounted Jfrom the ring.

3. A tire rim remover comprising a pair of jaws, one of which has a tooth thereon and the other a transverse groove in same, each of said jaws having a projection, bolts to engage the said projections and secure the jaws together to make them grip the opposite edges of a ring constituting the main part of a rim to hold the tire upon a wheel, the ring having an annular rib on one side to enter said groove, and the jaw having the tooth engaging the opposite side, the jaw bearing the groove having an eXtension beyond the groove, said extension beginning adjacent said groove, a bolt having threaded engagement with the extension, and a thrust block cooperating with the bolt to force the adjacent side of the tire ont of engagement with the side of the rim and thus loosen the tire and enable it to be dis mounted from the ring.

In testimony whereof, we have signed our names to this specification this 20 day of September, 1920.

JOHN A. SMITH. EDWARD H. ,STINES 

